Video není dostupné.
Omlouváme se.
Particle Physics - A-level Physics (old version)
Vložit
- čas přidán 6. 08. 2024
- NEW VERSION: • Video
------------------------------------------------
scienceshorts.net Please don't forget to leave a like if you found this helpful!
------------------------------------------------
00:00 Charge & specific charge
02:46 Types of particles: hadrons, mesons, leptons, baryons
06:10 Annihilation & pair production, rest mass & rest energy (E=mc2)
09:53 eV (electron-volt)
13:28 Conservation rules intro
15:26 Hadrons & quarks
20:40 Strong & weak nuclear forces
24:41 Feynman diagrams
29:44 Conservation rules examples -
----------------------------------------------------------------------
I don't charge anyone to watch my videos, so please donate if you can to keep me going! bit.ly/scienceshortsdonate
NEW VERSION: czcams.com/video/aGslSsZXh-A/video.html
it seems like you have removed the new version
You removed it please can you reuppload it or is watching this one fine
its removed can you reupload it again please
bro removed it
Seems like you removed the video?
00:00 specific charge for each particle
2:50 Energy to matter leading to Hadrons and leptons
5:30 Particles and Antiparticles
6:20 Annihilation and pair production
7:25 Rest Energy
10:00 correct units of energy for particles
13:30 Lepton number
15:30 Hadrons
18:40 Mesons
20:44 Forces of particles
is this for OCR or AQA only??
hero
Not all heros wear capes...
Feroza Mahzabin what if he does?
Thanks for the likes kids, hope you're all doing okay
100% recommend talking to yourself while watching these videos if you know what he's on about. For example, before he subdivided hadrons into baryons and mesons, say it out loud that that's what he's about to do. It'll help you commit to memory and if you get it wrong, play the video and you'll be able to correct yourself.
That's sounds like a really good idea thanks
*Annhilation.*
Annihilation
Annihilation
Annihilation
Annihilation
Annihilation
It is currently 1am - and you are saving my physics a level. Thank you you legend
@@amirfayed5579
I'm 5 months late - that was posted in September, not exactly leaving it to the last minute
you summed a lot of things in a relatively very short video without missing much of practical details ,Well Done !!!
A bit late but if theres any small details missed, list it in your comment so we can learn even more!
Goddammit I shouldn't have taken AS Physics but I'm here and I'm desperate and I'm glad this video has helped me more than my teachers all year
what did you get? plz tell me as i might drop next week!!!!!!
@@calteckk did you drop?
@@majestictable8098 nah. But I got a U in my first exam
@@calteckk
Same, first test i got 20% but i revised my ass off and i think i got an A on the test i did today.
hah got A in the end of the year exam in year 12 , came back after summer holidays , mock on AS physics cant remember a thing )))))))))))))
Heads up at 29:35 mistake was made, interaction is through the weak not strong. strangeness is only conserved in the strong interaction. The reaction you described consisted of kaons decaying into particles that do not have any strange in them (pions have d anti up u anti down etc ). therefore it must be weak as there was no conservation.
Thanks, good teachers are worth their weight in gold.
I guess ill just take a few kilos of gold to jupiter and voila youve been scammed. More weight=/= more mass
Teacher should show a video like this for every lesson starting a topic. You are then revising as going through the actual lessons and if you have to do work near the start you won't be limited by knowledge gained many lessons later
9:40 (Just so I dont forget where I left off)
15:20
20:40
24:42
+LucasPS4Gaming How mean would it be if I deleted this...
Smart
FINALLY FINISHED IT LOOL AFTER 2 MONTHS
Counter intuitive panda uui
why not watch it in one go? or... store the times on your own computer??
Richard Feynman 'still around' ~ died in 1988
...in our hearts?
Of course
always fam always
oof
Im so glad i found this Channel at the beginning of my Alevels instead of at the end!
I found it a year ago but only using it now after iv failed mocks
I haven’t even gotten my GCSE results yet but I’m definitely taking physics as an A level. 7 weeks into the A level we’re visiting CERN. My teachers exact words to me today were “learn particle physics” so here I am.
What did u get for ur gcse and A level results
This has to be one of the best physics channels!
i can't believe how lucky we are to have such amazing free content! Thank you so much
Thanks for all the videos, finally finished a levels physics today, been a seriously great help
Thanks a lot!! Your videos are very helpful for pre-uni revision. Since I come from outside the UK these lessons are perfect for covering the topics we don't study in my country!
I just wanted to thank you for these excellent videos. I just started my a-levels and your explanations are so easy to understand. I really appreciate all the time you've put into these, you're my go-to physics revision tool. I really can't thank you enough.
You must be in uni now so tell me how did you do in physics
@@ftbl_d1381 Hey yes, I'm in uni - did well enough in physics to get into medicine ;)
@@Mnnytxh what was your grade tho
Thank you so much for this. I’ve been struggling to understand particles for the longest times. I’m so glad I clicked on your video. THANKS AGAIN!!!
This is so helpful thank you so much! Needed this recap for my exam tomorrow 😭
Really an important and useful lecture for. Thank you so much for explaining this stuff even without the animation so well.
I have already subscribed the channel for more particle physics lectures.
Thanks so much your explanations are great to understand 👍
I couldn't fully understand the difference between a pion and kaon before so for anyone like me, pions have an overall strangeness of 0 while kaons have a overall strangeness of +1 or -1 in other words always have a single strange or anti-strange quark.
Pions can have a pair of a strange and an anti-strange quark but their strangeness cancels to zero still keeping their overall strangeness at 0.
Also thought I should mention that strange and anti-strange quarks can have a strangeness of +1 or -1 if that wasn't already clear
I watched this because I want to make research work on particle physics...indeed excellent and very helpful video..thanks for it
I enjoyed the PHYSICS. That's what needed...keep updating new videos😃👍
A
M
A
Z
I
N
G
I’m learning this for my trip to CERN!
Thanks so much for this, it's really helpful especially for the oct/nov students.
Really helpful intro to the topic. Great editing too! Thanks for the video
yes i agree, this video is very good
This is great video! Will be very useful over the next 2 years thanks
Leonardo when you doing A levels
Amazing video thank you so much!!!!!!!!!!!!!!! I dont know what id do without you sir!
great video as always sir! highly appreciate your efforts
wow! this was super helpful for my particle physics course! Thank you very much ~😊
This was a great explanation, thanks a lot for this
You explained this so clearly thank you!
i learn so much better through your videos:) Thank you!
Thanks for this resource, really helped out during these times :)
Eden I’m in year 11 checking physics out do we have to remember the charges,lepton number, Muño lepton number for each fundamental particle or will they give it to us in the exam
dude ur an amazing teacher!!💯👍
keep up the good work, i really appreciate it
Thank you so much I finally understand this topic 😭❤️
Very Very HELPFUL ! That helped me a lot
I really do love this channel!
Why did I just discover this channel ?? My A level Physics Exam (Edexcel New Spec) is Thursday .
Christina CatLover Unit 4? Cuz same 😂
Shirangi Leo Idk my paper is just called Paper 1 not sure what unit 😂
Mine too, Paper 1 hype
10 months late but how did it go?
snapchat?
Love it. Thanks for your time for free.
This video is so so useful thank you!!
Oooh, I love this! Keep it up, man! :D
These are great!
my favourite channel you life saver !
Amazing videos, keep it up!
Amazingly explained.
could you please make a video on astrophysics?
it would be a great help for me as i am having exam this may.
Thank you so much sir . Very helpful
Not gonna lie, you're pretty much the reason I understood the difference between hadrons and mesons and what on earth leptons are supposed to be. Thank you thank you thank you so much. (ps. Your voice is great. You could put up a video of you reading out the phonebook and I would still listen to you LOL)
Katerina Niar lol
I know how you could satisfie your subscriber, even more, you could provide the documents you have written as a pdf in the description.
Indubitable
gauge bosons have different lines in Feynman diagrams. A vertual photon has a squiggle, a gluon looks like a spring and weak gluon bosons a dotted line.
True. However AQA only used the former in Feynman diagrams, which is why I omitted the others here. Seeing as though they've removed Feynman diagrams from the spec, I might fix this at some point.
Science Shorts thanks for explaining 👍
I have a question, what happens to the potential difference in a parallel circuit containing branches with components of different resistances?
This is a great video. Very helpful. Is there any way to print the actual slides/notes?
Found out this channel and subscribed after watching this video
Last video before I head off to my paper 1 exam today!
this guy is freaking amazing
You are a God send!
19:05 nice editing. Nearly didn't notice it
THANK YOU SO MUCH
if 1 of the particles in any interaction is a lepton, even if the lepton is the product, the interaction is via the weak?
and if all of particles in an interaction are hadrons, the interaction is via the strong force?
this was helpful not going to lie thanks for the video
Thanks. Starting college in a few weeks and I want to get some stuff down now. Chances are I'm going to forget half of this but that's not your fault. You explained it really well and right now I understand it.
Should make things easier for me later on. Cheers
Did you remember more than half of it?
@@shaaravguha3760
Not really. I know more now but not sure how much from the video
great video thanks
So much for science shorts.
Jokes aside, really useful, thank you.
I'm thinking about renaming the channel Science 3/4 Lengths.
May I ask why conventionally the anti-neutrino should point in the oppposite direction? Also we were taught that we should indicate the direction of the W boson, is that unconventional?
very impressive lecture.
Thanks this was great
fantastic video
Thank you for the video
OMG THANK YOU SO MUCH MAN... YOU SAVED MY LIFE MAN
What does a Lepton represent? Just finished my Gcses and i really love physics. Your vids helped me a lot! Keep it up!
A particle that is not made up of any other sub particles. For example an electron is not made up of anything else therefore it is a lepton. However a proton is made up of quarks so it is a hadron rather than a lepton
Amazing!
How can you take away negativeness from a neutron? And whats a neutrino? I have so many questions.
I understood everything he just said in one go. I am a science lover.
Sciento Aballerati you think you do but you don’t trust me.
thanks a million!
Great video
yay mock test tomorrow. 12am. im saved
nice more on particle physics.
Excellent sir
21:00 I took my headset off trying wondering why there was a car driving like that near my house
??????
If I keep watching these I'll officially be able to say I passed an exam because of CZcams
I can now say, with a hypothesis significant level of 1%, that I passed my GCSEs with only youtube. I discarded myself from school as it would affect me literally not even the students the SCHOOL waking up early in the morning learning stuff half asleep getting 3s and 4s so I took a month off school I got fined once and a meeting with the school saying you're going to fail but hey I got an 8 in the end so if alls well it ends well:)))))))).
Did you? I'm trying my best to self-study 😬
When discussing conservation, we were told that C, B, and L must be conserved but that Strangeness was only conserved when there are NO Leptons around. Then at 30:00 the equation is reviewed and Strangeness is considered even though there are Leptons (e+ & Ve+) in the equation.
Please could someone confirm the use of Conservation of Strangeness?
Strangeness is always conserved when it is a strong interaction however if it was a weak interaction it could increase by 1 or -1 on either side so I think that strangeness is not conserved when there are interactions including leptons as leptons are involved in weak nuclear interactions which would mean the strangeness is not conserved but in the strong nuclear it has to be conserved if that makes sense I’m not very good at explaining 😅
Thanks a lot sir..
Thank you
He had me in the first half, not gonna lie
great video
good one
he is better than all my physics teachers combined
At 31:41, why would the lepton number for the muon be -1 and not +1. Isn't -1 only for antileptons?
at 3:10 he said when we create some particles, what's the thing about conservation of momentum that cancels each other out??? can someone please help me, it would be a great help. thankss
Thank you for that brief and detailed explanation on particle physics. I have a question tho. Isn't the charge of electron negative 1.6x10^-19 ? Because you didn't take the negative sign into consideration when you were calculating the specific charge.
He did.
1.6x10^-19/10^-31=1.6x10^12
When dividing with powers the powers subtract - 19--31=12
@@curseofgladstone4981 i think they meant -1.6 x 10^-19
I do not understand how in the Feynman diagram for beta decay, charge, baryon number and lepton number are conserved at each junction. Is it possible that you could please explain this?
Also please share Notes in written format as well .......Any format text Handwritten or Image
34:12 could you please explain why it would become a weak interaction if strangeness was not conserved? I thought that the weak force was only for interactions involving leptons. Or are the weak interaction and the weak nuclear force different things? Thank you :)
So basically, as Issac Newton implied, planes can only fly north on a Tuesday. With that in mind, the gravity on wind resistance on Tuesday's will therefore create an imbalance of the earth's internal energy, simultaneously causing the earth to spin faster north compared to weekends. The strangeness implied will therefore interfere with the radioactive gamma displaced by Chernobyl, effectively rendering all aspects of the apple landing on Rutherford's head useless. We then therefore can conclude that earth's gravity is directly proportional to the electronic voltage within a parallel circuit
Hope that helps!
W vid, I have my paper 1 mock tomorrow
and i'm back with my actual paper 1 in 2 weeks ahhhh
well done
very informative